Which situation is MOST likely to cause sympatric speciation? Galapagos tortoises developing differently on two different islands B changes in two deer populations after an earthquake separates them C a forest bird population dividing into two as they eat different seeds D Oceania splitting up to separate koalas and Tasmanian tigers

Most short-period comets do not have randomly oriented orbits because

Which of the following is not a means to accelerating? question 4 options: a)increase speed b)remain still c)decrease speed d)change direction

Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)